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NTN 4-bolt flange mounted bearing · NTN UELFU204D1W3
NTN UELFU204D1W3 flange bearing 4 holes

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NTN UELFU204D1W3 flange bearing 4 holes

Manufacturer Part NumberUELFU204D1W3
Brand
NTN
Subcategory
Y-bearing unit
Series
UELFU2
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Since 1945 · Martínez, Buenos Aires, Argentina

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Description

NTN UELFU204D1W3 is a reference of flange bearing 4 holes, within Bearing housings. Request a quote for UELFU204D1W3 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The NTN UELFU series Y-bearing flange unit is a 4-bolt flange mounted bearing unit. It is used to support rotating shafts on flat structures, with the advantage that the bearing comes already inserted in the housing, aligned and ready to mount. It is a compact and robust solution for power transmission in equipment that requires firm fastening and simple mounting.

The UELFU designation is read as follows: U indicates an insert bearing unit, ELF corresponds to the 4-bolt flange, and the final U indicates the insert's locking type. The numbers that follow identify the shaft diameter: for example, UELFU204 is for a 20 mm shaft, UELFU205 for 25 mm, UELFU206 for 30 mm. The suffixes D1 and W3 refer to sealing and configuration variants. In the hyphenated examples, such as UELFU204-012, the numeric suffix indicates an inch measurement.

These units are used in a wide variety of industries in Argentina: food plants, material handling, agricultural machinery, packaging equipment, ventilation systems and chemical processes. Their 4-bolt flange allows them to be mounted on flat surfaces, such as sheet metal walls or profile structures, providing stable support for shafts rotating at moderate speeds.

To select the correct unit, take into account the shaft diameter, the type of load (radial, axial or combined) and the environmental conditions. The D1 seal offers protection against dust and moisture, while the W3 variant may include additional sealing features. During mounting, ensure proper alignment and correct lubrication; the insert usually comes pre-lubricated, but it is advisable to check its condition and relubricate according to the operating regime.

As for equivalents, NTN UELFU units are interchangeable with those of other brands that follow the same 4-bolt flange standard and shaft diameters. If you have the part number from another brand, we can tell you the equivalent NTN reference. MR Accesorios Industriales sells NTN mounted bearings.

To request a quote for the unit you need, write to us on WhatsApp with the part number or the shaft measurement. At MR Accesorios Industriales we advise you so you can choose the variant suited to your application. We can also source other references from the UELFU2 series that do not appear in our list. Your inquiry will be answered shortly.

Dimensions

Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm the dimensions and version against the manufacturer's data sheet.

Frequently Asked Questions

What does the designation UELFU204D1W3 mean?
UELFU indicates a 4-bolt flange unit with insert bearing; 204 corresponds to a 20 mm shaft; D1 is a sealing variant; W3 refers to additional sealing features. It is a standard NTN nomenclature.
Is this unit suitable for dusty or humid environments?
Yes, the variant with the D1 and W3 suffixes offers reinforced sealing that protects against dust and splashes. For very aggressive environments, ask us about options with special seals.
Can I replace a unit from another brand with this NTN one?
In general, yes, if the flange dimensions and shaft diameter match. If you send us the original brand's part number, we'll tell you the equivalent NTN reference and quote it for you.
Request a quote for UELFU204D1W3 via WhatsApp
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